2009 Aston Martin DB9 vs. 2007 Audi A4
To start off, 2009 Aston Martin DB9 is newer by 2 year(s). Which means there will be less support and parts availability for 2007 Audi A4. In addition, the cost of maintenance, including insurance, on 2007 Audi A4 would be higher. At 5,933 cc (12 cylinders), 2009 Aston Martin DB9 is equipped with a bigger engine. In terms of performance, 2009 Aston Martin DB9 (510 HP @ 6500 RPM) has 255 more horse power than 2007 Audi A4. (255 HP @ 6500 RPM). In normal driving conditions, 2009 Aston Martin DB9 should accelerate faster than 2007 Audi A4. With that said, vehicle weight also plays an important factor in acceleration. 2007 Audi A4 weights approximately 120 kg more than 2009 Aston Martin DB9.
Because 2007 Audi A4 is four wheel drive (4WD), it will have significant more traction and grip than 2009 Aston Martin DB9. In wet, icy, snow, or gravel driving conditions, 2007 Audi A4 will offer significantly more control. With that said, do keep in mind that many other factors such as speed and the wear on your tires can also have significant impact on traction and control. Let's talk about torque, 2009 Aston Martin DB9 (570 Nm @ 5750 RPM) has 239 more torque (in Nm) than 2007 Audi A4. (331 Nm @ 3250 RPM). This means 2009 Aston Martin DB9 will have an easier job in driving up hills or pulling heavy equipment than 2007 Audi A4. 2007 Audi A4 has automatic transmission and 2009 Aston Martin DB9 has manual transmission. 2009 Aston Martin DB9 will offer better control over acceleration and deceleration in addition to better fuel efficiency overall. 2007 Audi A4 will be easier to drive especially in heavy traffic.
Compare all specifications:
| 2009 Aston Martin DB9 | 2007 Audi A4 | |
| Make | Aston Martin | Audi |
| Model | DB9 | A4 |
| Year Released | 2009 | 2007 |
| Body Type | Coupe | Sedan |
| Engine Position | Front | Front |
| Engine Size | 5933 cc | 3123 cc |
| Engine Cylinders | 12 cylinders | 6 cylinders |
| Engine Type | V | V |
| Valves per Cylinder | 4 valves | 4 valves |
| Horse Power | 510 HP | 255 HP |
| Engine RPM | 6500 RPM | 6500 RPM |
| Torque | 570 Nm | 331 Nm |
| Torque RPM | 5750 RPM | 3250 RPM |
| Engine Bore Size | 89 mm | 84 mm |
| Engine Stroke Size | 79.5 mm | 96 mm |
| Fuel Type | Gasoline - Premium | Gasoline - Premium |
| Drive Type | Rear | 4WD |
| Transmission Type | Manual | Automatic |
| Number of Seats | 4 seats | 5 seats |
| Number of Doors | 2 doors | 4 doors |
| Vehicle Weight | 1760 kg | 1880 kg |
| Vehicle Length | 4730 mm | 4590 mm |
| Vehicle Width | 1910 mm | 1780 mm |
| Vehicle Height | 1290 mm | 1430 mm |
| Wheelbase Size | 2750 mm | 2660 mm |
| Fuel Consumption Highway | 12.4 L/100km | 8.7 L/100km |
| Fuel Consumption City | 19.7 L/100km | 12.4 L/100km |
| Fuel Consumption Overall | 16.3 L/100km | 10.7 L/100km |
| Fuel Tank Capacity | 78 L | 63 L |
